Ðerdap gorge system

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Iron Gate

the last gorge of the
Ðerdap gorge system on the Danube River, dividing the Carpathian and Balkan mountains and forming part of the boundary between Serbia and Romania. It is about 2 miles (3 km) long and 530 feet (162 metres) wide, with towering rock cliffs that make it one of the most dramatic natural wonders of Europe. Near the town of Sip a large rock reef (called Perigrada) obstructed...